Question

while conducting an experiment on carbon dioxide is important for photosynthesis, why should we choose only long leafed plant​

Answer 1

Explanation:

Photosynthesis (Greek word photos: light; synthesis-, putting together) is the process by which the green plants synthesise their own food (glucose) using carbon dioxide and water as raw materials in presence of sunlight and chlorophyll. During this process oxygen is released as a by-product. The overall process of photosynthesis can be represented by the following equation:



Answer 2

Answer:

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CO2   in photosynthesis acts as a carbon source. Mohl performed an experiment (called Mohl's half leaf experiment) to demonstrate the necessity of carbon dioxide for photosynthesis.This apparatus consists of a hiding mouthed bottle with a small amount of KOH solution. A plotted plant is kept in darkness for two days to remove starch. A leaf lamina of the plant is introduced into the bottle in such a way that half of the leaf lamina is inside the bottle and half outside. The part inside bottle does not gets CO2 .

After a few hours of experiment, this very leaf is tested by iodine.The part of leaf outside becomes blue while part remaining in the bottle is colorless suggesting that, photosynthesis occurs only in the outside leaf which produces starch and this starch gives blue colour with iodine. Thus, potassium hydroxide can be used to remove CO2 gas.

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Explanation: